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da71cf0ce9
"Type has virtual functions but non-virtual destructor" warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58710 91177308-0d34-0410-b5e6-96231b3b80d8
127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
//===- ValueTypes.cpp - Tablegen extended ValueType implementation --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// The MVT type is used by tablegen as well as in LLVM. In order to handle
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// extended types, the MVT type uses support functions that call into
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// LLVM's type system code. These aren't accessible in tablegen, so this
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// file provides simple replacements.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/ValueTypes.h"
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#include "llvm/Support/Streams.h"
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#include <map>
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#include <vector>
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using namespace llvm;
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namespace llvm {
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class Type {
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public:
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virtual unsigned getSizeInBits() const = 0;
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virtual ~Type() {}
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};
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}
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class ExtendedIntegerType : public Type {
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unsigned BitWidth;
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public:
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explicit ExtendedIntegerType(unsigned bits)
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: BitWidth(bits) {}
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unsigned getSizeInBits() const {
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return getBitWidth();
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}
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unsigned getBitWidth() const {
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return BitWidth;
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}
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};
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class ExtendedVectorType : public Type {
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MVT ElementType;
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unsigned NumElements;
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public:
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ExtendedVectorType(MVT elty, unsigned num)
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: ElementType(elty), NumElements(num) {}
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unsigned getSizeInBits() const {
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return getNumElements() * getElementType().getSizeInBits();
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}
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MVT getElementType() const {
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return ElementType;
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}
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unsigned getNumElements() const {
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return NumElements;
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}
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};
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static std::map<unsigned, const Type *>
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ExtendedIntegerTypeMap;
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static std::map<std::pair<uintptr_t, uintptr_t>, const Type *>
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ExtendedVectorTypeMap;
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MVT MVT::getExtendedIntegerVT(unsigned BitWidth) {
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const Type *&ET = ExtendedIntegerTypeMap[BitWidth];
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if (!ET) ET = new ExtendedIntegerType(BitWidth);
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MVT VT;
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VT.LLVMTy = ET;
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assert(VT.isExtended() && "Type is not extended!");
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return VT;
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}
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MVT MVT::getExtendedVectorVT(MVT VT, unsigned NumElements) {
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const Type *&ET = ExtendedVectorTypeMap[std::make_pair(VT.getRawBits(),
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NumElements)];
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if (!ET) ET = new ExtendedVectorType(VT, NumElements);
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MVT ResultVT;
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ResultVT.LLVMTy = ET;
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assert(ResultVT.isExtended() && "Type is not extended!");
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return ResultVT;
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}
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bool MVT::isExtendedFloatingPoint() const {
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assert(isExtended() && "Type is not extended!");
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// Extended floating-point types are not supported yet.
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return false;
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}
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bool MVT::isExtendedInteger() const {
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assert(isExtended() && "Type is not extended!");
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return dynamic_cast<const ExtendedIntegerType *>(LLVMTy) != 0;
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}
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bool MVT::isExtendedVector() const {
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assert(isExtended() && "Type is not extended!");
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return dynamic_cast<const ExtendedVectorType *>(LLVMTy) != 0;
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}
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bool MVT::isExtended64BitVector() const {
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assert(isExtended() && "Type is not extended!");
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return isExtendedVector() && getSizeInBits() == 64;
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}
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bool MVT::isExtended128BitVector() const {
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assert(isExtended() && "Type is not extended!");
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return isExtendedVector() && getSizeInBits() == 128;
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}
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MVT MVT::getExtendedVectorElementType() const {
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assert(isExtendedVector() && "Type is not an extended vector!");
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return static_cast<const ExtendedVectorType *>(LLVMTy)->getElementType();
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}
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unsigned MVT::getExtendedVectorNumElements() const {
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assert(isExtendedVector() && "Type is not an extended vector!");
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return static_cast<const ExtendedVectorType *>(LLVMTy)->getNumElements();
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}
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unsigned MVT::getExtendedSizeInBits() const {
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assert(isExtended() && "Type is not extended!");
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return LLVMTy->getSizeInBits();
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}
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